[INFO] fetching crate fselect 0.6.10...
[INFO] documenting fselect-0.6.10 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate fselect 0.6.10 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate fselect 0.6.10 on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fselect 0.6.10
[INFO] finished tweaking crates.io crate fselect 0.6.10
[INFO] tweaked toml for crates.io crate fselect 0.6.10 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate fselect 0.6.10 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0cb289cf9ceb91d9692be06dbd743e6ecb7d563a3a228ea8435277b997061953
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0cb289cf9ceb91d9692be06dbd743e6ecb7d563a3a228ea8435277b997061953", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0cb289cf9ceb91d9692be06dbd743e6ecb7d563a3a228ea8435277b997061953", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0cb289cf9ceb91d9692be06dbd743e6ecb7d563a3a228ea8435277b997061953", kill_on_drop: false }`
[INFO] [stdout] 0cb289cf9ceb91d9692be06dbd743e6ecb7d563a3a228ea8435277b997061953
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f51835f31688b0d75f038cef8e0025b21a454a858b8aa86fd431a00fc8df8f5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "5f51835f31688b0d75f038cef8e0025b21a454a858b8aa86fd431a00fc8df8f5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]    Compiling siphasher v0.3.3
[INFO] [stderr]     Checking bitstream-io v0.8.5
[INFO] [stderr]     Checking scanlex v0.1.2
[INFO] [stderr]     Checking mutate_once v0.1.1
[INFO] [stderr]     Checking podio v0.1.6
[INFO] [stderr]     Checking humansize v1.1.0
[INFO] [stderr]     Checking bytecount v0.6.0
[INFO] [stderr]     Checking imagesize v0.8.1
[INFO] [stderr]     Checking mp3-metadata v0.3.3
[INFO] [stderr]     Checking bitreader v0.3.2
[INFO] [stderr]    Compiling bzip2-sys v0.1.8+1.0.8
[INFO] [stderr]     Checking miniz_oxide v0.3.6
[INFO] [stderr]     Checking lscolors v0.7.0
[INFO] [stderr]     Checking app_dirs v1.2.1
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking kamadak-exif v0.5.1
[INFO] [stderr]     Checking num-integer v0.1.42
[INFO] [stderr]    Compiling syn v1.0.18
[INFO] [stderr]     Checking petgraph v0.5.0
[INFO] [stderr]     Checking mp4parse v0.11.2
[INFO] [stderr]     Checking phf_shared v0.8.0
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking flate2 v1.0.14
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking xattr v0.2.2
[INFO] [stderr]     Checking users v0.10.0
[INFO] [stderr]     Checking wana_kana v2.0.1
[INFO] [stderr]     Checking bzip2 v0.3.3
[INFO] [stderr]     Checking nom v3.2.1
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]     Checking zip v0.5.5
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]     Checking tree_magic v0.2.3
[INFO] [stderr]     Checking chrono-english v0.1.4
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]     Checking bstr v0.2.12
[INFO] [stderr]     Checking serde_json v1.0.51
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]     Checking csv v1.1.3
[INFO] [stderr]    Compiling phf_macros v0.8.0
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]     Checking phf v0.8.0
[INFO] [stderr]     Checking matroska v0.5.4
[INFO] [stderr]  Documenting fselect v0.6.10 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 54.21s
[INFO] running `Command { std: "docker" "inspect" "5f51835f31688b0d75f038cef8e0025b21a454a858b8aa86fd431a00fc8df8f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f51835f31688b0d75f038cef8e0025b21a454a858b8aa86fd431a00fc8df8f5", kill_on_drop: false }`
[INFO] [stdout] 5f51835f31688b0d75f038cef8e0025b21a454a858b8aa86fd431a00fc8df8f5